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  <title>Returns headers for all messages in a mailbox</title>
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  <div id="layout-content"><div id="function.imap-headers" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">imap_headers</h1>
  <p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">imap_headers</span> &mdash; <span class="dc-title">Returns headers for all messages in a mailbox</span></p>

 </div>
 <div class="refsect1 description" id="refsect1-function.imap-headers-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>imap_headers</strong></span>
    ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$imap_stream</code></span>
   ) : <span class="type">array</span></div>

  <p class="para rdfs-comment">
   Returns headers for all messages in a mailbox.
  </p>
 </div>

 <div class="refsect1 parameters" id="refsect1-function.imap-headers-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    <dt>
<code class="parameter">
imap_stream</code></dt>
<dd>
<p class="para">由 <span class="function"><a href="imap_open.html" class="function">imap_open()</a></span> 返回的 IMAP 流。</p></dd>

   </dl>

  </p>
 </div>

 <div class="refsect1 returnvalues" id="refsect1-function.imap-headers-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns an array of string formatted with header info. One
   element per mail message.
  </p>
 </div>

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